Pencil-sharpener.



y L 'PATEK-Humm?, 1904. F. H. CHASE.. A PENCIL SHARPEN'ER.

APPLIOATION FILED PEB. 1, 1904.

N0 IODEL.

UNiTED STATES Patented June '7, 1904-.

PATIENT OFFICE.

PENCIL-SHARPENEFI.

SPECIFICATION forming part of Letters Patent N o. 761,944, dated .I une 7, 1904. Application filed February l, 1904. Serial No. 191,575. (No model.)

To all whom it may' concern.-

Be it known that I, FRANK H. CHASE, a citi- Zen of the United States, residing' at Chicago, in the county of Cook andV have invented certain new and useful Improvef ments in Pencil-Sharpeners, of which the following' is a specification. u Y

rIhis invention relates to pencil-Sharpeners of the kind which are adapted to be carried in a pocket, like those described in my applications Serial No. 162,307, filed .I une 20, 1903, and Serial No. 169,794, iiled August 17, 1903.

The objectof this invention is to provide a portable pencil-Sharpener of simple construction which receives and confines the shavings within itself and is adapted to be folded into compact form with the cutting-blade protected when not in use. v

Further objects of the invention are to simplify and improve the construction of the sharpener and reduce the costof manufacture,

. ,to enable the Sharpener to be readily opened slip-lid also opened.

or unfolded for use, and also to secure the knife-blade rigidly in place to provide for its easy removal for sharpening. Y

In the accompanying drawings, illustrating the preferred embodiment of the invention, Figure 1 is a perspective View of the sharpener closed. Fig. 2 is a plan view of the bottom or cutting side of the Sharpener in open position. Fig. 3 is a longitudinal sectional View on the line 3 3 of Fig. 2.Y Fig. 4 is atop plan View of the Sharpener opened, with the Fig. 5 is a detail View of the knife-blade. Fig. 6 is a detail'view of the locking-yoke. Fig. 7 is a transverse sectional view on the line 7 7 of Fig. 4. Fig. 8 is an end view looking at the right end-of Fig. 3.

In the drawings like numerals of reference indicate corresponding parts `vin the Several figures, and, referring thereto, 10 designates the casing, which is shown made of a single plate bent upon itself and its ends held t'ogether by the pivot-pin 11. This casing is cnt out or recessed at 12 on its top and bottom near one end for a purpose hereinafter described. Aframe 14 is pivotally secured on the pivot-pin within the 'ends of the casing,

State of Illinois,

in said opening the back and withdrawn.

and'it is provided with a guard 15, which, with theY knife-blade 16, forms the bottom of the frame. A

' The knife-blade is adapted to be engaged at one end with the pivot-pin and held securely in place by a locking device which engages its other end. r For this purpose the blade 'is provided at one end with a slot 17 to receive the pivot-pin, and at its other end with a projection 18 to enter an opening 19 in the downturned end 20 of a yoke 21, which iits within the casing, against the side Walls-thereof, with its end 20 projecting through an opening 22 in the outer end of the casing. rIhe lockingyoke is provided with a lug 23, which enters a slot 24 in the inwardly-turned iange 25 on the top of the easing, and when this lug rests yoke will be held against endwise movement and the downturned end V2O will be engaged with the blade to lock it securely in place. To unlock the blade, the lug 2 3 is disengaged from the opening 24 by pressing it inward, and then pressure is applied to the lug to move the yoke lengthwise ofthe casing and disengage the end 20 from the blade, after which the blade can be'swung When the blade Y is again inserted in proper position, pressure is applied to the end 20 to move it into engagement with the blade, and the lug 23 again enters its opening 24 to lock the yoke and the blade in place. Aguide 26 maybe provided for that end of the yoke which carries the lug 23. It will' be observed that the yoke is shaped to fit within the casing, and itssides work against the sides of the casing'and between its bottom andthe inwardly-turned lianges 25 at its top. The bodily movement of the yoke is limited in one direction 'by the outer end of the casing and by a downwardly-turned lug 27, so that it can never become displaced from the casing.

A slip-lid 28 forms a top for the frame and can be readily opened to permit the discharge of the shavings. which" have been collected .in the frame, Fig. 4. A pin 28 on the easing projects into a slot 29 in the slip-lid and the frame and limits the swinging movement of the lid and frame, so that they will tit snugly within the easing when closed and aline properly with the easing when open for use.

This pencil-Sharpener is compact in form and can therefore be conveniently carried in a pocket. It is adapted to be quickly opened for use and can be manipulated in the ordinary manner of sharpening a pencil with a penknife. By cutting out or recessing the casing in the manner illustrated it is made to form a handle which can be firmly held in` the hand to facilitate the use of the device` and it also enables the frame to be readily grasped by the fingers to unfold or open the Sharpener. The frame is entirely closed when the sharpener is in use except for the narrow slot which is of course provided between the knife and the guard, as shown in Fig. 7, to permit the knife to cut off a shaving from a pencil; but this slot is not of suliicient size to allow the shavings to escape from the frame. When the pencil has been sharpened, the sliplid can be adjusted to the position shown in Fig. i and the shavings discharged. This slip-lid is provided with an opening 30 in its outer end to engage a stud 3l on` the frame to prevent the lid from accidentally slipping to open position. The manner of securing and locking the blade in place is very simple and permits the blade to be readily and easily removed to be sharpened at any time.

Without limiting myself to the exact construction and arrangement of parts herein shown and described, what I claim, and desire to secure by Letters Patent, is!- l. A pencil-Sharpener comprising a frame adapted to receive and confine the shavings, a knife-blade carried by said frame, and acasing constituting a handle for the Sharpener and formed of a single plate bent upon itself and adapted to infold the frame, said casing being pivotally connected at the ends of the plate to the frame and recessed or cut out on the corresponding edge of its top and bottom and near the outer end thereof.

2. Apeneil-sharpener comprising a folding casing and frame, a knife-blade carried by and removable from the frame, and a device for locking the blade to the frame.

3. Apencil-sharpener comprising a folding casing and frame, a pin pivotally connecting the casing and frame`V a knife-blade provided with a slot to receive said pivot, and a device for locking said blade to the frame.

4. A pencil-Sharpener comprising a frame, a knife-blade carried by and removable Afrom the frame, and a locking device operating within the frame and having a part projecting through the frame to engage and lsecure the blade to the frame.

5. A pencil-Sharpener comprising a frann, a knife-blade carried by said frame, a yoke slidable in the frame, and a lug on the yoke extending through an opening in the frame and adapted to make locking engagement with the blade.

6. A pencil-Sharpener comprising a lranie, a knife-blade carried by said frame, a yoke within the frame, a lug on the yoke projecting through an end of the frame to make locking engagement with the blade, and a lug on the yoke within the frame to make locking engagement therewith.

FRANK H. CHASE.

fitnessesz WM. O. BELT, PAUL Sonnnennn. 

